Warp stop-motion for looms.



PATENTED MAY 5, 1908 'J. B, DERPINAK. WARP STOP MOTION FOR LOOMS.

APPLIGATION FILED SEPT. 16, 1907.

i I a I ATTOkNEY specification.

' This invention relates tothat class of stop-. ;mo'tions in which metallic dro wires are sus =pended upon-the war threa' s in such rela at ely uponthe'breaking of any one of the" iwarp threads'the wire suspended thereupon 1-5 "ated d stepp his invention'has forits p articularobj ect J-draWlDg'sin which JOSETH'B. DERFINAK, OF MYSTIC, CONNECTICUT..

WARP s'ror m'orron FOB Looms.

Specification of Letters Patent.

Patented ma 6, 1908.

Application filed September 16, 1907 Serial No. 892,937.

T 0 all whom itmay concern:

Be it known that I, J osnrn B. DERFINAK, a. citizen of the United States, residing at Mystic, in -the, county ofN'ew London-and State of Connecticut, have invented a new and useful Improvement in War Stop-M0- tions for Looms, of which the to owing is a tio'n to-an open electric circuit that, immediw ill drop by gravity and close the circuit,

thus-'incitin v to actionsuitable mechanism -by=mea ns oi which the belt shipper is operand-the loom is thus automatically the im rovement'iofthe saidjdrop-wires, to

the en'] that they may be readily suspended upon the warp threads and I also-provide f'with each dro wire an indicator whereby ,the breaking o noted; i

a warp-thread will be visibly "In orderto aid in ex laining" my said in'-' ventionl have provide the accompanying 1 j Figure '1' isaside elevation fofa 'loom-frarne ha v'mg" mounted therein stop mechanism -includin my'lp 4 is are ative y -harnesses, or heddle framea having two: heddle wires,j. and. two drop-wiresmountedthereinf Figs. 3 and 4 arecr0ss' sectionalviews of; saidheddlefframe, the-former showingthe warp thread-intact and under tension. andthe latter showingsaid thread as broken and the drop-wirein roper position to close eiloo'm; Figs! and6' are,'respect ivel side'and-end views of a cone 'vjenient form 10 fmagn et =foruse inconnection thebeltshipl'ping mechanism. H V I ese drawings, the; numeral u 10 indicates. the "end franie of a ,loo'm," 1 1' the? lathe-or. batten; -12 the harness, 13 the warp beanij:and 141-17116 take up beamat the front ofthe 1pom; ;on1. thoseparts'of the-loom bejillustrated t tat have special relation to nylglpresent invention:

resent improvements, Fig. 4 2 enlarged view; of one ofthe Referring to-t ddle wires: 15", of- 4 nnountediuponbarslfi extending from end to' claiin 1- 'rdin'a'r'yterm, are

end of the harness '12 and for each of said heddle'wires I- provide a dro' -wire 17; each hedcl-le and its companion rop-wire being formed with guide eyes that register with each other so ion as thewarp threads arev unbroken. and und er tension (see Fig.3 and i ls'o the left-hand heddle and its drop-wire in i The lower end portion of each drop-Wire 17 is' slotted-as at 17 and straddles a wire 18 fixed 1n the lower part of the harness, while the upper-end of each dro' -wire is pivoted to crurned on a wire a shortlever 1 9 that is 20 near the upper portion of the harness. The other .end of"lever '19 has pivoted thereto a short wire 21 that extends upwardly' through axguide-eye 22. The 'ref-' 'erence numeral 23 denotesa metallic wire or plate-extending from, end to end of the harness in such-relation to the lever IQ-that when the wire .17; drops, because ofz'a broken thread, the lever-19 will rock" upwardlyginto' engagementwith'the said wire 23 (see Fig. 4) and the short wire-21 will be correspondinglyraised". This brings thdwire 21 into the view {or the operator 'of; theloonij and said wire then, serves as a' visible indicator to call in Fig.. 3-, the lever P19 is held out of'engage- .partijcular attention'to the broken threads; f The; Wires 2Qyand'23.,are"includedfin an v. electric circuit'andthe lever-19 serves the circuitmaker andabreaker, that is to say, when the warp threads-areunbroken', as seen ment with wire 23'-and the circuit-1s1ke t v openbi'it; so soon as a threadibreaks andt e at the'frontof the lo'oin. When the magnet is {thus energized the oppositely extending end of 'thearmatnre'ilh is rocked downwardly into; the path of a stud orother rojection 27 carried by thebatten-and the-s pper r0d'25 is released andjthe belt-shifted so as to stop -the 100111,] I

Having thus described "invention I In w t' -m pion, in combination icowith a "normall open; electrical,.circui t,f a

lb d w .10 wire sli bly pp ed at'fone end, ailever ed to the other end of said 'drop-wiregj'said lever operating to close the said circuit upon the, dropping of the lever operating to close the circuit npo'n the said drop-wire. s.

2. In a warp st0p-m0tion, in combination, a normall open electrical circuit, a dr'op- 5 wire slide 1y supported at one end, a lever Witnesses:

hinged to the other end of said drop-wire and FRANK H. ALLEN, an indicator connected to said lever; the said J. L. BERTH.

dropping of the said drop-wire JOSEPH B. DERFINAK. 

